Computer Crashes during video playback

My computer will occasionally crash, and it only happens when I am trying to play a video (on youtube, or an actual video file). It started up after I installed my r9 290 and evo 212 cpu cooler (I think it started with the 290). I also get common screen flickering, where the screen will go black for a few seconds, then go back to normal. This happens when I am not gaming, but occasionally happens during League of Legends.

If it crashes with a BSOD and there is a dump file - windows - minidumps
send a copy of the dump file please

Click to expand...

open computer
open windows
scroll to mini dump folder
open that
right click the latest dump file and click send to compressed - choose desktop as location please
on reply here click go advanced then manage attachments and then browse to the saved file and open then upload and it will be attached to your reply

Re this -

Graphics Card: AMD Radeon R9 200 Series, -1 Mb

Click to expand...

have you connected the 6 pin power connection to the card please

or if it is the Sapphire card - the 8 pin and the 6 pin
If it is that card I think two adapters were supplied with it - to 4 pin
PCI Express® based PC is required with one X16 lane graphics slot available on the motherboard. 1X75 Watt 6-pin PCI Express power connector is required.

Re the never bought 8 pin - do you have the two power connections to the card - is it the Sapphire

Re the dump file
Open up Windows Explorer as an administrator.
To do this, go to Start and type in "windows explorer" (without the quotes).
Then right click on Windows Explorer at the top of the search box and select "Run as administrator".

Then, copy the dump files to your Desktop select them all (hold the Ctrl key while clicking on each one).
Then right click on them and select "Send to", then select "Compressed (zipped) folder"

When I right click "run as administrator", it sends me to the libraries section (where is shows "documents", "libraries", "pictures', and "videos"). When I go to compouter/localdisk/windows/miniddump I still get the same problem.

It look as though it is correct but you say you installed it, so presumably you know where the two power connectors go to

What graphics did you have before you installed the Sapphire

When you right click on one of the dump files do you then have the menu shown on my screenshot - namely the SEND TO and if you hold on that do you then have the second menu shown and does that include the compressed zip folder

You are NOT trying to open it - you are simply sending it to a compressed file so that you may then attach it